SIMCAR: sistema integrado de multicritério para ações de remediação em áreas urbanas contaminadas por acidente nuclear

Abstract

The analysis of accidents involving nuclear power plants or facilities that use or process radioactive sources raise questions related to the decision-making processes and procedures used to restore normal living conditions in the affected areas. Due to the great complexity of the decision processes after the accidents, a multi-criteria approach has been recommended to support the choice between the various remediation procedures. In this work a software was developed in Visual Basic (Excel) language, named SIMCAR: Integrated Multi-criteria System for Remediation Actions in Urban Areas contaminated by nuclear accident. SIMCAR performs the dose calculation on residents and visitors from urban settings; Simulates the effect of the use of decontamination procedures on surfaces, dose rates of the environments and the doses of residents and visitors; Classifies these procedures, according to the results obtained, in specific scenarios, within pre-established criteria; and establishes priorities through the use of multi-criteria model, considering the relevant aspects of radioprotection. This work considers only the radionuclide Cs-137, being the most relevant radionuclide in the remediation phase of a nuclear accident in urban areas.